verb (used with object), cor·rob·o·rat·ed, cor·rob·o·rat·ing.

  1. to make more certain; confirm: He corroborated my account of the accident.


  1. Archaic. confirmed.


  1. (of evidence, a statement, etc) lacking confirmation or evidence

verb (kəˈrɒbəˌreɪt)

  1. (tr) to confirm or support (facts, opinions, etc), esp by providing fresh evidencethe witness corroborated the accused’s statement

adjective (kəˈrɒbərɪt) archaic

  1. serving to corroborate a fact, an opinion, etc
  2. (of a fact) corroborated

v.1530s, “to give (legal) confirmation to,” from Latin corroboratus, past participle of corroborare “to strengthen, invigorate,” from com- “together” or “thoroughly” (see com-) + roborare “to make strong,” from robur, robus “strength,” (see robust). Meaning “to strengthen by evidence, to confirm” is from 1706. Sometimes in early use the word also has its literal Latin sense, especially of medicines. Related: Corroborated; corroborating; corroborative.

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